Y and Ni Co-Doped BaZrO3 as a Proton-Conducting Solid Oxide Fuel Cell Electrolyte Exhibiting Superior Power Performance

Handle URI:
http://hdl.handle.net/10754/582495
Title:
Y and Ni Co-Doped BaZrO3 as a Proton-Conducting Solid Oxide Fuel Cell Electrolyte Exhibiting Superior Power Performance
Authors:
Shafi, Shahid P.; Bi, Lei; Boulfrad, Samir; Traversa, Enrico ( 0000-0001-6336-941X )
Abstract:
The fabrication of anode supported single cells based on BaZr0.8Y0.2O3-δ (BZY20) electrolyte is challenging due to its poor sinteractive nature. The acceleration of shrinkage behavior, improved sinterability and larger grain size were achieved by the partial substitution of Zr with Ni in the BZY perovskite. Phase pure Ni-doped BZY powders of nominal compositions BaZr0.8-xY0.2NixO3-δ were synthesized up to x = 0.04 using a wet chemical combustion synthesis route. BaZr0.76Y0.2Ni0.04O3-δ (BZYNi04) exhibited adequate total conductivity and the open circuit voltage (OCV) values measured on the BZYNi04 pellet suggested lack of significant electronic contribution. The improved sinterability of BZYNi04 assisted the ease in film fabrication and this coupled with the application of an anode functional layer and a suitable cathode, PrBaCo2O5+δ (PBCO), resulted in a superior fuel cell power performance. With humidified hydrogen and static air as the fuel and oxidant, respectively, a peak power density value of 428 and 240 mW cm−2 was obtained at 700 and 600°C, respectively.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Y and Ni Co-Doped BaZrO3 as a Proton-Conducting Solid Oxide Fuel Cell Electrolyte Exhibiting Superior Power Performance 2015, 162 (14):F1498 Journal of The Electrochemical Society
Publisher:
The Electrochemical Society
Journal:
Journal of The Electrochemical Society
Issue Date:
16-Oct-2015
DOI:
10.1149/2.0701514jes
Type:
Article
ISSN:
0013-4651; 1945-7111
Additional Links:
http://jes.ecsdl.org/lookup/doi/10.1149/2.0701514jes
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorShafi, Shahid P.en
dc.contributor.authorBi, Leien
dc.contributor.authorBoulfrad, Samiren
dc.contributor.authorTraversa, Enricoen
dc.date.accessioned2015-11-22T12:10:13Zen
dc.date.available2015-11-22T12:10:13Zen
dc.date.issued2015-10-16en
dc.identifier.citationY and Ni Co-Doped BaZrO3 as a Proton-Conducting Solid Oxide Fuel Cell Electrolyte Exhibiting Superior Power Performance 2015, 162 (14):F1498 Journal of The Electrochemical Societyen
dc.identifier.issn0013-4651en
dc.identifier.issn1945-7111en
dc.identifier.doi10.1149/2.0701514jesen
dc.identifier.urihttp://hdl.handle.net/10754/582495en
dc.description.abstractThe fabrication of anode supported single cells based on BaZr0.8Y0.2O3-δ (BZY20) electrolyte is challenging due to its poor sinteractive nature. The acceleration of shrinkage behavior, improved sinterability and larger grain size were achieved by the partial substitution of Zr with Ni in the BZY perovskite. Phase pure Ni-doped BZY powders of nominal compositions BaZr0.8-xY0.2NixO3-δ were synthesized up to x = 0.04 using a wet chemical combustion synthesis route. BaZr0.76Y0.2Ni0.04O3-δ (BZYNi04) exhibited adequate total conductivity and the open circuit voltage (OCV) values measured on the BZYNi04 pellet suggested lack of significant electronic contribution. The improved sinterability of BZYNi04 assisted the ease in film fabrication and this coupled with the application of an anode functional layer and a suitable cathode, PrBaCo2O5+δ (PBCO), resulted in a superior fuel cell power performance. With humidified hydrogen and static air as the fuel and oxidant, respectively, a peak power density value of 428 and 240 mW cm−2 was obtained at 700 and 600°C, respectively.en
dc.language.isoenen
dc.publisherThe Electrochemical Societyen
dc.relation.urlhttp://jes.ecsdl.org/lookup/doi/10.1149/2.0701514jesen
dc.rightsThis is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives 4.0 License (CC BY-NC-ND, http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial reuse, distribution, and reproduction in any medium, provided the original work is not changed in any way and is properly cited. For permission for commercial reuse, please email: oa@electrochem.org.en
dc.subjectBaZrO3en
dc.subjectenergy conversionen
dc.subjectNi-dopingen
dc.subjectproton-conducting oxidesen
dc.subjectsolid oxide fuel cells (SOFCs)en
dc.titleY and Ni Co-Doped BaZrO3 as a Proton-Conducting Solid Oxide Fuel Cell Electrolyte Exhibiting Superior Power Performanceen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalJournal of The Electrochemical Societyen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
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